| Value | Category | Cases | |
|---|---|---|---|
| 1 | Less than 1 month | 23 |
4%
|
| 2 | 1 to 2 months | 36 |
6.3%
|
| 3 | 3 to 6 months | 72 |
12.5%
|
| 4 | 7 to 11 months | 22 |
3.8%
|
| 5 | 1-2 years | 85 |
14.8%
|
| 6 | 3 or more years | 336 |
58.5%
|
| Sysmiss | 43840 |